When cellar spiders’ webs are disturbed or these spiders are threatened by entangled, large preys, these arachnids initiate rapidly vibrating, gyrating motions in their webs, blurring themselves, making it difficult to focus on them. Cellar spiders may eat prey immediately or store their catches for later. After snaring prey, cellar spiders quickly envelop their prey with silk then inflict fatal bites. Preferring the dark, damp recesses of caves, under rocks, under loose bark, abandoned mammal burrows, in addition to undisturbed areas such as cellars and basements, cellar spiders also spin their webs in warm, dry windows and attics.Īlthough cellar spider webs don’t contain adhesive properties, their random web structure traps insects, making their escapes difficult. Confusion arises due to applying the name "daddy longlegs" to two distantly related arthropod groups: harvestmen, which are arachnids but not spiders, and crane flies, which are insects.Ĭellar spiders hang upside-down in messy, irregular, tangled webs. Often mistaken for other spider species, cellar spiders are commonly called daddy longlegs spiders, granddaddy longlegs spiders, carpenter spiders or vibrating spiders. Size: Cellar spiders measure 2–10 mm in body length, with legs up to 50 mm long and cylindrical abdomens resembling peanuts. Location: Found on every continent in the world, except Antarctica.Species: In the suborder, Araneomorphae, Pholcidae, or cellar spiders, belong to a family of spiders containing about 1500 species divided into about 80 genera.
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